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Whitepapers
Delineation of hydrocarbon prospective areas is an important issue in petroleum exploration. The geoelectric method helps to identify attractive areas and reduces the overall drilling risk.
Senscient - Enhanced Laser Diode Spectroscopy Design
Operators of gas detection systems used in safety-critical applications in the hydrocarbon processing, petrochemical and other industries are increasingly looking for rugged fixed, open path (line-of-site) gas detectors featuring high safety integrity with low levels of maintenance and total cost of ownership. Enhanced Laser Diode Spectroscopy™ (ELDS™) is a unique class of laser diode spectroscopy that includes techniques for increasing sensitivity and reliability for gas detection applications. The design of an open path gas detection (OPGD) system with ELDS can meet industry requirements for high safety integrity and low maintenance with two proprietary ELDS techniques: harmonic fingerprints and automatic functional testing of gas detectors. Harmonic Fingerprinting enables new levels of precision and reliability of target gas identification. Simulated gas detection enables simple, remote functional testing without the traditional requirement to apply a test gas to a detector in the field.
Geoelectric methods map resistivity and induced polarization in the subsurface. The differentially normalized electro-magnetic method (DNME) detects geochemical alteration zones that give rise to anomalous responses. Such zones are commonly situated in sedimentary rocks some distance above hydrocarbon accumulations. Epigenetic mineral growth is stimulated by a change in pH of the pore fluid due to leakage of hydrocarbons from a non-perfect top seal. DNME uses particular geoelectric parameters derived from potential difference relaxation curves observed in the field. An electric depth model is established by 1D inversion with the Cole-Cole simulation procedure. Synthetic modelling shows that separation of the electromagnetic and induced polarization components of the total measured electric field is possible. Simulated field responses at the recording station are compared with those from two known 3D depth models. The discrepancy or misfit is less than 0.2%. The effectiveness of the workflow is demonstrated on the Severo-Guljajevskaya case study in the Barents Sea. The DNME evaluation technique reduces risks attached to drilling new hydrocarbon prospects and provides a better ranking at reasonable cost.
ОПРЕДЕЛЕНИЕ ДИСТИЛЛЯЦИОННЫХ ХАРАКТЕРИСТИК НА ПОТОКЕ (по результатам внедрения потоковых анализаторов на нефтеперерабатывающих предприятиях)
Benefits of induced polarization geoelectric method
Delineation of hydrocarbon prospective areas is an important issue in petroleum exploration. The geoelectric method helps to identify attractive areas and reduces the overall drilling risk. For this purpose, we mapped induced polarization (IP) effects caused by the presence of epigenetic pyrite microcrystals in sedimentary rocks.
Enhanced laser diode spectroscopy design
Operators of gas detection systems used in safety-critical applications in the hydrocarbon processing, petrochemical and other industries are increasingly looking for rugged fixed, open path (line-of-site) gas detectors featuring high safety integrity with low levels of maintenance and total cost of ownership. Enhanced Laser Diode Spectroscopy™ (ELDS™) is a unique class of laser diode spectroscopy that includes techniques for increasing sensitivity and reliability for gas detection applications. The design of an open path gas detection (OPGD) system with ELDS can meet industry requirements for high safety integrity and low maintenance with two proprietary ELDS techniques: harmonic fingerprints and automatic functional testing of gas detectors. Harmonic Fingerprinting enables new levels of precision and reliability of target gas identification. Simulated gas detection enables simple, remote functional testing without the traditional requirement to apply a test gas to a detector in the field.
Source: www.cisoilgas.com© 2013 GDS Publishing Ltd. All rights reserved.